Rewinding machine



A. ROSS.

REWINDING MACHINE.

APPLICAFION FILED'JULY s. 1919.

Patnted Aug. 3,1920.

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A. ROSS.

REWINDING MACHINE.

APPLICATION men JULY 8. m9.

Patented Aug. 3, 1920.

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UNITED STATES PATENT OFFICE.

ADAM ROSS, OF BUFFALO, NEW YORK.

REWINDING-MACHIN E.

Application filed July 8, 1919.

To all whom it may concern:

Be it known that I, ADAM Ross, a citizen of the United States, residing in Buffalo, in

This invention has for its object the production of a machine for this purpose which can be very easily and conveniently operated, whichis simple and compact in construction, which will permit small rolls of paper to be wound so that they are of uniform diameter and are even at their ends, and which can be manufactured at comparatively low cost.

In the accompanying drawings:

Figure 1 is a side elevation of a rewinding machine embodying my improvements. Fig. 2 is a fragmentary vertical longitudinal section of the same taken on line 22, Fig. 3. Fig. 3 is a vertical transverse section taken on line 33, Fig. 1. Fig. 4 is a front elevation of the machine. Fig. 5 is a top plan "iew thereof, showing the rewind shaft partly withdrawn. Fig. 6 is a fragmentary vertical transverse section, on an enlarged scale, taken on the correspondingly numbered line'in Fig. 1.

Similar characters of reference refer to like parts throughout the several views.

The main frame of this machine compises a horizontal base or plate 1 which may be constructed of wood or any other suitable material, two rear uprights or standards 2, 2, secured at their lower ends to opposite parts of the rear end of the base and two front uprights or standards 3, 4 which are secured at their lower ends to opposite parts of the front end of the base, each of these standards being preferably of L-shaped form and constructed of sheet metal and provided at its lower end with a horizontal foot 5 which is secured to the base by means of screws 6. I

7 represents a supply roll of paper or other material which is to be rewound into a plurality of small rolls 18 and which is usually received from the mill with conical tubular bushings 8 of wood or other suit- Specification of Letters Patent.

Patented Aug. 3, 1920.

Serial No. 309,377.

able material inserted into opposite ends of the central opening in this roll. This roll is pivotally mounted upon the rear standards 2 by means of a horizontal transverse supporting axle 9 which passes through the bushings of the supply roll and is provided at its opposite ends with reduced necks 10 which engage with upwardly opening bearing notches 11 formed in the upper ends of the rear standards. Each of the necks 10 forms inner and outer shoulders 12, 13 on the supporting axle which engages with the inner and outer sides of the respective rear standard and thereby hold the axle against lengthwise movement but permitting the latter to be moved freely into and out of the notches of these standards when removing a pair of empty bushings therefrom and replacing the same by a pair of bushings which carry a new supply roll.

It is necessary to retain the supply roll in a definite position lengthwise of the axle in order to cause the paper to unwind properly therefrom and to facilitate its proper rewinding into smaller rolls by the mechanism which will be hereinafter described. It is also necessary to prevent the supply roller from spinning or rotating unduly easy when withdrawing the strip of paper therefrom during the formation of the smaller rewound rolls and insure close and tight winding of the strip of paper in the rewound rolls. This guiding or centering of the supply roll and the retarding of its rotation are preferablyaccomplished by a single device which in its preferred form, as shown in Figs. 1, 4, 5 and 6, preferably comprises a bearing head 1 1 engaging partly with the outer side of each bushing 8 and the adjacent part of the supply roll, and provided with an externally screw threaded shank 17 which passes horizontally and transversely through an opening in the adjacent rear standard, and inner and outer screw nuts 16, 15 engaging with this screw shank and bearing against the inner and outer sides of the respective rear standard. By turning these screw nuts in the proper direction each of the bearing heads 14 may be adjusted transversely on its respective standard for the purpose of shifting the supply roll and its bushings lengthwise on the axle into the proper position for causing the strip of paper running off from the same to. be proper y presented to the rewind mechanism and upon tightening these screw nuts the bearing heads may be caused to on gage with the outer ends of these bushings and the adjacent flat ends of the supply roll, so that a frictional resistance or braking effect is produced on the supply roll and its bushings which will prevent the latter from rotating too freely and thus keep the web of the paper extending from the periphery of the supply roll to the rewind mechanism sufliciently taut to produce close or tight wound rewound rolls.

As the strip or band of paper passes off the supply roll the same is wound upon a rewind or mandrel shaft 19 which is ar ranged transversely and horizontally in front of the supply roll and has its central part made of angular form in cross section, preferably square, so that upon winding the first turn of the strip upon this shaft the corners of this shaft will engage the strip with a sufficient frictional grip to cause the strip to cling to the mandrel shaft and wind thereon into the form of a rewound roll without requiring any additional fastening for this purpose.

This mandrel or rewind shaft is pivotally mountedby means of journals 20, 21 arranged at its opposite ends and turning in bearings 22, 28 formed respectively at the upper end of the front standard 3 which is comparatively short and on the intermediate part of the front'standard 4: which is made comparatively long. Then a rewound roll 18 of the desired diameter has been produced'this roll can be removed from the machine by simply withdrawing the rewind shaft or mandrel lengthwise from the cen-' tral opening thereof, as well as from the bearings 22, 23 on the front standards, after which this shaft may be again reengaged with these bearings preparatory to producing the next rewound roll. Although any suitable means may be provided for turning this rewind shaft in its normal operative position, this is preferably effected by providing one end of the same, )referably that end adjacent to the longfront standard, with the gear pinion 2A which is adapted to intermesh with a gear wheel 25 journaled on a stud 27 on the upper end of the standard 4: and provided with a gear or handle 26 for turning the same. When the rewind shaft is removed from its bearings on the front standards its gear pinion 24 is disengaged from the driving gear wheel 25, as shown'by dotted lines in Fig. A and by full lines in Fig. 5.

The inner side of the long front standard 4 preferably serves as one of the guides which engages with one end of the rewound roll, so as to cause the strip or band of paper to be wound properly on the rewind shaft and make the opposite ends thereof even.

That end of the rewound roll adjacent to the short front standard 3 is also made even by a horizontally and transversely adjustable vertical guide 28 which engages with the respective end of the re-wound roll and is provided with an upright slot 29 whereby the same straddles the adjacent part of the rewind shaft, as best shown in Figs. 2, 3, 4 and 5. In order to permit of adjusting this movable end guide lengthwise of the rewind shaft to suit the width of the paper band or strip which is being rewound, adjusting means are provided which preferably consist of a horizontal transverse into a roll having even ends and after such adjustment this gage willbe held. in place by tightening these nuts.

This movable end guide is preferably associated with means for regulating the diameter of the rewound roll; These means preferably consist of a gage'finger 3O arranged at the lower end of the movable .end' guide 28- and projecting horizontally and transversely inward therefrom so that when the rewound roll 18 has reached a predetermined diameter, its periphery'will engage with this gage finger and thus serve to ar rest the further winding of additional layers of paper on the rewound roll as well as indicating to the operator that the rewound roll has attained the desired diameter. By loosening the clamping screws 33, 34 and moving the screw shank 31 either up or 7 erably provided with flat sides 39 which 7 bear against the sides of the slot 32 and thus maintain the guide 28 and gage 30 always in their normal position. V

After each rewound roll is produced and the rewind mandrel or shaft has been re: moved therefrom the band or strip of paper forming a web 40 between the rewind roll and the supply roll may be severed in'any suitable manner for completing the rewound roll and beginning the rewinding operation of the next rewound rol l.

A suitable mechanism for thus severing the web between the large supply roll and the small rewound roll which is shown in the drawings preferably comprises a severing or tearing bar which is normally arranged horizontally and transversely across the front end of the base and piv oted at one end to this base by means of a screw 86 so that this severing bar can swing vertically while the downward movement of the opposite end of this bar is limited by means of a stop 37 arranged on the front and of the base adjacent to the opposite side thereof and engaging with the lower edge of the severing bar. The free end of the latter is preferably provided with a forwardly-projecting finger piece or handle 38, as shown in Figs. 1, 4L and 5, for manipulating this bar. Preparatory to severing or tearing the web between a rewound roll and a supply roll the severing bar 35 is swung upwardly and out of a position across the front end of the base, after which the web between the rewound and supply rolls is drawn across the front end of the base and then clamped between the same and the inner side of the severing bar by lowering the latter into its operative position. Upon twisting the rewound roll so as to cause the web portion of the band to be drawn past the lower edge of this bar the severing of this web will occur so as to complete the rewound roll after which the end of the web or strip may be released from between the base and the severing bar and applied to the rewind shaft preparatory to producing the next rewound roll.

As a whole this machine is exceedingly simple considering the function which it performs, the same can be operated very easily, it has no delicate parts which are liable to get out of order and the same occupies a comparatively small amount of space.

I claim as my invention:

1. A rewinding machine comprising a rewinding shaft, a standard having a bearing in which one end of said shaft is journaled and also provided with an opening, an end guide straddling said shaft and adapted to engage with one end of the roll which is being wound on said shaft, a screw shank connected with said guide and passing through said opening, and screw nuts arranged on said shank and engaging with opposite sides of said standard.

2. A rewinding machine comprising a rewinding shaft, a standard having a bearing in which one end of said shaft is journaled and also provided with a vertical slot, a gage adapted to be engaged by the periphery of the roll which is to be wound on said shaft, a screw shank carrying said gage and passing through said slot, and clamping screw nuts arranged on said shank and engaging with opposite sides of said standard.

3, A rewinding machine comprising a rewinding shaft, a standard having a bearing in which one end of said shaft is journaled and also provided with a vertical slot, a gage adapted to be engaged by the periphery of the roll which is to be wound on said shaft, an end guide connected with said gage and provided with an upright slot which receives said shaft, a screw shank carrying said gage and guide and passing through said slot, and clamping screws arranged on said shank and engaging with opposite sides of said standard.

ADAM ROSS. 

